Biology 9700/34 Oct Nov 2017 | Cambridge AS Level Past Papers With Mark Scheme

1. Monitoring enzyme-catalyzed carbon dioxide release in yeast through Visking tubing, using bromothymol blue indicator for pH changes.

2. Preparing reducing sugar standards and estimating sugar concentrations through Benedict's test time-to-color-change data.

3. Comparing metabolic rates in yeast using different sugars and analyzing enzymatic activity differences between sucrose and glucose.

4. Drawing and labeling plant stem transverse sections to examine tissue structures and comparing vascular bundle ratios in root and stem samples.

5. Tabulating observable anatomical differences between plant stem and root transverse sections to identify tissue-specific characteristics.